I have reviewed your forum and there are many people asking the same question about this error: An error occurred while updating Enfold: Download failed. A valid URL was not provided.
When are you planning to respond to this?
Hey tcoms,
We respond to all support requests. Have you read any of our replies? Then you would know that the update to 4.5 has to be done manually, I explain why in this thread: https://kriesi.at/support/topic/enfold-4-5-theme-update-update-failed-download-failed-a-valid-url-was-not-pro/#post-1021541
You can update manually via FTP: https://kriesi.at/documentation/enfold/how-to-install-enfold-theme/#theme-update, or using this plugin to upload the theme zip file: https://wordpress.org/plugins/update-theme-and-plugins-from-zip-file/
Best regards,
Rikard